Oscar-nominated composer, conductor and arranger Michael Kamen, one of Hollywood’s most sought-after musicians, died at age 55 on Tuesday after suffering from multiple sclerosis for several years, members of his family said.

Kamen died in a hospital in London, where he had lived with his wife and two daughters, his brother Leonard said during a telephone interview from New York.

Doctors were unable to resuscitate Kamen following a “cardiac event,” he said.

The native New Yorker and Juilliard School of Music Graduate was one of Hollywood’s most successful composers who worked on music for the “Lethal Weapon” series and scored “Die Hard” among many other films.

He was first diagnosed with multiple sclerosis in 1996, but did not go public about the disease until late September.

Multiple sclerosis is an inflammatory disease of the central nervous system that causes various disabilities.

The full story is available at the link above and you can view Kamen’s filmography by going here.